<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <script src="https://lf3-cdn-tos.bytecdntp.com/cdn/expire-1-M/vue/2.6.14/vue.js" type="application/javascript"></script>
</head>
<body>
  <div id="app">
    <my-component :title="title"></my-component>
  </div>
</body>
<script>
  //通过父子传参,传和显示父组件传过来标签
  Vue.component('my-component', {
    props: ['title'],
    template: `
      <div>子组件-<div v-html="title"></div></div>
    `
  })
  let vm = new Vue({
    el: '#app',
    data() {
      return {
        title: '<h3>标题</h3>'
      }
    },
  })
</script>
</html>
